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<h1>wavelets_tfsa
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<h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="box"><strong>FOWARD AND INVERSE FAST WAVELET TRANSFORMS</strong></div>

<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
<div class="fragment"><pre class="comment"> FOWARD AND INVERSE FAST WAVELET TRANSFORMS

  This function performs the fast wavelet transform. The function
  transforms the time domain signal to the time-scale domain or the
  transforms the time-scale distribution to the time domain, i.e.
  either forward or reverse transforms may be performed by setting
  the direction parameter. The algorithm implements decomposition
  into Daubechies wavelets, and uses a pyramidal fitering scheme.


 PARAMETERS:                                             

  SIGNAL                                                 
      Input one dimensional signal to be analysed.    

  OUTPUT TYPE                                            
    One of the following:                                
       1. Output is one dimensional, and represents the  
          raw result from the fast wavelet transform.    
       2. Output is two dimensional. This output is      
          corresponds to the scalogram.                  

  NUMBER OF COEFFICIENTS                               
     Number of wavelet coefficients (4, 12 and 20)      

  DIRECTION                                             
     Either forward transform (time domain to scale     
     domain) or reverse (time-scale to time domain).</pre></div>

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